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Revenue (Details - Percentage of total net revenue) - Revenue Benchmark [Member] - Customer Concentration Risk [Member]
12 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Product [Member]    
Disaggregation of Revenue [Line Items]    
Concentration Risk, Percentage 91.00% 96.00%
Service [Member]    
Disaggregation of Revenue [Line Items]    
Concentration Risk, Percentage 9.00% 4.00%